Synergistic hydrogenolysis of biomass furfuryl alcohol over Ru/solid base catalysts in hydrothermal reaction environment

2021 ◽  
Vol 49 (12) ◽  
pp. 1867-1874
Author(s):  
Yu-jing WENG ◽  
Shi-hang MENG ◽  
Wan-sheng ZHU ◽  
Ming-wei ZHANG ◽  
SUN-Qi ◽  
...  
Keyword(s):  
Furfuryl Alcohol ◽  
Hydrothermal Reaction ◽  
Solid Base ◽  
Solid Base Catalysts ◽  
Base Catalysts

scholarly journals Effect of Solid Bases Catalyst on Conversion of Acrylonitrile into Acrylic Acid by Hydrothermal Reaction

2020 ◽  
Vol 194 ◽  
pp. 04017
Author(s):  
Chang Yue ◽  
Haixia Ye ◽  
Xuejun Yang ◽  
Ke Wang ◽  
Jia Miao ◽  
...  
Keyword(s):  
Acrylic Acid ◽  
Alkaline Earth ◽  
Hydrothermal Reaction ◽  
Earth Metal ◽  
Alkaline Earth Metal ◽  
Solid Base ◽  
Solid Base Catalysts ◽  
Base Catalysts ◽  
Effect Of Treatment ◽  
Short Time

This study aims at the shortcomings of the current industrial application of acrylonitrile wastewater treatment, using alkali-catalyzed hydrothermal technology to convert acrylonitrile into acrylic acid for achieving resource utilization. In this study, alkali metal, alkaline earth metal hydroxide and composite solid base were used as catalysts to investigate catalytic effects of these solid based on the hydrothermal reaction. The results show when using the alkali and alkaline-earth metal hydroxides as catalysts, the best effect of treatment was KOH and the highest yield of acrylic acid reached 56.60%. It was also found that, among the three kinds of solid base catalysts (Ca-O-Mg, K-O-Al, K-O-Si) adopted with the same mass and various loading capacity, K-O-Si (15%) was the most effective catalyst for the conversion of acrylonitrile, and the highest yield of acrylic acid reached 57.78%. This process provides an environmentally friendly method toward the synthesis of useful acrylic acid from acrylonitrile within a very short time.

Self-condensation of propanol over solid-base catalysts

2004 ◽  
Vol 275 (1-2) ◽  
pp. 103-110 ◽  
Author(s):  
A.S. Ndou ◽  
N.J. Coville
Keyword(s):  
Solid Base ◽  
Solid Base Catalysts ◽  
Base Catalysts

Solid base catalysts obtained from hydrotalcite precursors, for Knoevenagel synthesis of cinamic acid and coumarin derivatives

2006 ◽  
Vol 308 ◽  
pp. 13-18 ◽  
Author(s):  
E. Angelescu ◽  
O.D. Pavel ◽  
R. Bîrjega ◽  
R. Zăvoianu ◽  
G. Costentin ◽  
...  
Keyword(s):  
Solid Base ◽  
Coumarin Derivatives ◽  
Solid Base Catalysts ◽  
Base Catalysts

scholarly journals Nitrogen-containing carbon nanotubes as solid base catalysts

2006 ◽  
pp. 4859 ◽  
Author(s):  
Stefan van Dommele ◽  
Krijn P. de Jong ◽  
Johannes H. Bitter
Keyword(s):  
Carbon Nanotubes ◽  
Solid Base ◽  
Solid Base Catalysts ◽  
Base Catalysts

Amine-functionalized MgAl LDH nanosheets as efficient solid base catalysts for Knoevenagel condensation

2018 ◽  
Vol 449 ◽  
pp. 31-37 ◽  
Author(s):  
Huanhuan Jia ◽  
Yuan Zhao ◽  
Panpan Niu ◽  
Ningyue Lu ◽  
Binbin Fan ◽  
...  
Keyword(s):  
Knoevenagel Condensation ◽  
Solid Base ◽  
Solid Base Catalysts ◽  
Base Catalysts ◽  
Amine Functionalized

Enhanced hydrolysis of streptomycin from production wastewater using CaO/MgO solid base catalysts

2019 ◽  
Vol 355 ◽  
pp. 586-593 ◽  
Author(s):  
Mei Tang ◽  
Xiaomin Dou ◽  
Zhe Tian ◽  
Min Yang ◽  
Yu Zhang
Keyword(s):  
Solid Base ◽  
Solid Base Catalysts ◽  
Base Catalysts ◽  
Hydrolysis Of

Screening of solid base catalysts on palm oil based biolubricant synthesis

2017 ◽  
Vol 148 ◽  
pp. 441-451 ◽  
Author(s):  
Choon Tah Ivan-Tan ◽  
Aminul Islam ◽  
Robiah Yunus ◽  
Yun Hin Taufiq-Yap
Keyword(s):  
Palm Oil ◽  
Solid Base ◽  
Solid Base Catalysts ◽  
Base Catalysts

scholarly journals Investigation of solid base catalysts for biodiesel production from fish oil

2019 ◽  
Vol 139 ◽  
pp. 661-669 ◽  
Author(s):  
Despoina Papargyriou ◽  
Emmanouil Broumidis ◽  
Matthew de Vere-Tucker ◽  
Stelios Gavrielides ◽  
Paul Hilditch ◽  
...  
Keyword(s):  
Fish Oil ◽  
Biodiesel Production ◽  
Solid Base ◽  
Solid Base Catalysts ◽  
Base Catalysts

scholarly journals Environmentally Benign Neem Biodiesel Synthesis Using Nano-Zn-Mg-Al Hydrotalcite as Solid Base Catalysts

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Karthikeyan Chelladurai ◽  
Manivannan Rajamanickam
Keyword(s):  
Methyl Esters ◽  
Catalytic Performance ◽  
Environmentally Benign ◽  
Bet Surface Area ◽  
Molar Ratio ◽  
Solid Base ◽  
Synthetic Compound ◽  
Solid Base Catalysts ◽  
Base Catalysts ◽  
Biodiesel Synthesis

Hydrotalcite, also known as aluminum-magnesium layered double hydroxide (LDH) or anionic clay, is a synthetic compound that was broadly investigated in the past decade due to its many potential applications. In this work, we present an environmentally benign process for the transesterification (methanolysis) of neem oil to fatty acid methyl esters (FAME) using Zn-Mg-Al hydrotalcites as solid base catalysts in a heterogeneous manner. The catalysts were characterized by XRD, FT-IR, TPD-CO2, and the BET surface area analysis. It is well-known that the catalytic performance of hydrotalcite is dramatically increased through the incorporation of Zn into the surface of Mg-Al hydrotalcite material. The optimized parameters, 10 : 1 methanol/oil molar ratio with 7.5 g catalysts reacted under stirring speed 450 rpm at 65°C for 4 h reaction, gave a maximum ester conversion of 90.5% for the sample with Zn-Mg-Al ratio of 3 : 3 : 1.

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